I was looking at some spyshots of that new "performance" version of the X5 and if you scroll down you see some interesting talk about making this into a "tii" version which will be some kind of CSL branding to new BMWs. If true that would be a really interesting angle to go with on the X, namely a very lightweight version of the car with some big power to boot. Unbeatable combo? I think so...

This is the conversation i'm referring to: http://www.xbimmers.com/forums/showthread.php?t=133019

Scroll down a bit to see the "tii" talk...